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Does ActiveRecord have a built-in upsert functionality? I know I could write it myself but I obviously don't want to if such a thing already exists.
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Upsert in database terms refers to an operation which should insert a row into a database table if it doesn't not already exist, or update it if it does. One can implement this function in Rails by writing __anActiveRecordExtension__ . This will allow you to call the upsert method on any model.
Updates or inserts (upserts) a single record into the database in a single SQL INSERT statement. It does not instantiate any models nor does it trigger Active Record callbacks or validations. Though passed values go through Active Record's type casting and serialization.
The term upsert is a portmanteau – a combination of the words “update” and “insert.” In the context of relational databases, an upsert is a database operation that will update an existing row if a specified value already exists in a table, and insert a new row if the specified value doesn't already exist.
ActiveRecord is an ORM. It's a layer of Ruby code that runs between your database and your logic code.
There is an awesome new feature in rails 6: they added upsert and upsert_all to ActiveRecord
More info can be found here https://edgeapi.rubyonrails.org/classes/ActiveRecord/Persistence/ClassMethods.html#method-i-upsert_all
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